Unspontan.com

You know the problem:

You meet with a few people regularly, e.g. to play soccer, poker night...
You send emails or text messages to get things organized.
Noone really knows who will come and who won`t.

This is over now: Here is unspontan.com (German for: 'not spontaneous'), your one-stop site to arrange all this!

It works like this:

You register. You can use any (even non-existing) email adress...
You add some information about your 'group', e.g. 'This is our weekly poker night...'.
You add at least one date, and (if needed) time and location info.
You add other users for your group.
They log on and give feedback.

Try it, it's simple and free! I created this app to organize our weekly indoor soccer.
In fact, this app only points to the website www.unspontan.com.